Chemical composition of a new Lupinus species found in Spain, Lupinus mariae-josephi H. Pascual (Fabaceae)

Abstract

A new lupin from Valencia (Spain) has been described recently. The new species Lupinus mariae-josephi H. Pascual (Fabaceae) differs from any other Mediterranean and North American taxon in banner position, flower colour and inflorescence structure. This species was found in a calcareous area, and when it was grown in experimental fields it has always performed better in alkaline soils. This work attempts to establish the content of protein, oil and nutritionally active factors (alkaloids, α-galactosides and inositol phosphates) in this new species of lupin, to investigate differences with other Lupinus ssp. The analysed raw seed samples of this new species showed a total protein content of 329.4 g kg -1 and oil content of 54.0 g kg -1 . The total content of alkaloids, α-galactosides and phytate was similar to other bitter Lupinus species being lupanine, stachyose and myo-inositol hexaphosphate (IP 6 ) the main bioactive compounds. However, the profile of alkaloids and proteins, which is an important chemotaxonomic criterion, was characteristic of this species. It is worth to notice that this Lupinus is able to grow in calcareous soils what makes this species very promising for soil recovery.Additional keywords: alkaloids; fatty acids; lupin; phytate; protein pattern; α-galactosides. ResumenComposición química de una nueva especie de Lupinus encontrada en España: Lupinus mariae-josephi H. Pascual (Fabaceae) Recientemente se ha descrito una nueva especie de Lupinus en Valencia (España). Esta nueva especie, Lupinus mariae-josephi H. Pascual (Fabaceae) difiere de otras especies de Lupinus del área mediterránea o de Norteamérica en la posición del estandarte, el color de la flor y la estructura de la inflorescencia. Fue encontrada en un área calcárea, y en estos últimos años, cuando se ha cultivado, ha crecido en suelos calizos. El objetivo de este trabajo ha sido estudiar el contenido de proteína, grasa y factores nutricionalmente activos (alcaloides, α-galactósidos y fitatos) en esta nueva especie, para ver las diferencias que existen con otras especies de Lupinus. Los resultados han mostrado un contenido en proteína de 329,4 g kg -1 y un contenido en grasa de 54,0 g kg -1 . El contenido total de alcaloides, α-galactósidos y fitatos fue similar a otras especies amargas de Lupinus siendo la lupanina, la estaquiosa y el mioinositol hexafosfato (IP 6 ) los principales componentes bioactivos. Sin embargo, el perfil de alcaloides y el perfil proteico, que son un importante criterio taxonómico, fueron característicos de esta especie. Es importante resaltar que esta especie de Lupinus es capaz de crecer en suelos calizos, lo que la hace muy prometedora para la recuperación de suelos.

Nutrient Contents in Yellow Lupine (Lupinus luteus L.) and Blue Lupine (Lupinus angustifolius L.) Cultivars Depending on Habitat Conditions

“…found in L. barkeri. In the studies of Muzquiz et al [28], fat content in the seeds of L. mariae-josephi was similar to L. luteus and L. hispanicus, and at the same time lower than in the seeds of L. mutabilis and L. albus. Garcia-Lopez et al [29] determined that fat content in L. mexicanus amounted to, on average, 5.7%, while in L. montanus it was two-fold higher.…”

Effect of Varieties on Bioactive Properties and Mineral Contents of Some Sorghum, Millet and Lupin Seeds

“…The sucrose content of lupin ranged between 1.5 to 3.5 , why stachyose ranged between 6.0 and 7.5 . Raffinose contents which was found to be 33.2 g/kg was significantly higher than verbascose 8.49 g/kg in lupin seeds 36 . According to Muzquiz et al 11 , lupin L. mariae-josephi seeds contain 79.1 g/kg oligosaccharides.…”

Efecto del tratamiento térmico sobre la composición química y minerales en semillas de lupinos silvestres

“…Overall, protein content in researched lupines was greater than those found in other Mexico wild species as L. refl exus (37.31g/100 g ), L. splendens (37.2), L. campestris (39.7) and L. barkeri (37.07 g/100 g ) [2,14,17] and from Spain, such as L. gredensis (23.8g/100 g ), L. mariaejosephi (32.9) and L. luteus (33.6g/100 g ) [19,20] and similar to the domesticated varieties of L. albus, L. luteus and L. angustifolius (30 to 40 g/100 g ) [21]. All of the seeds had a slight reduction in protein due to the thermal treatment but not signifi cant, with exception of L. rotundifl orus with a signifi cant reduction (p< 0.05) of 41.96 to 37.52 g/100 g. These results do not coincide with those reported by Jiménez et al, [2] whom observed an increase of this nutrient in Lupinus campestris seeds of 39.7g/100 g to 49.7g/100 g after being submitted to a six hour thermal treatment.…”